Why does Odysseus leave the island of Circe?

Odysseus leaves the island of Circe because he is compelled by the need to return home to Ithaca and reunite with his wife, Penelope. After spending a year with Circe, who initially turned his men into swine but later helped him, he receives guidance from her to continue his journey. She advises him to seek the wisdom of the prophet Tiresias in the Underworld, emphasizing the importance of completing his journey. Motivated by his longing for home and the promise of adventure ahead, Odysseus departs Circe's island.